How smarter are you than a fifth grader in remote learning?

Solve problems This is not only interesting, but also extremely useful activity. But for some reason, every adult is sure that mathematics was enough for him for 11 grades of school, and in these solid years it is not worth doing this. This view is difficult to agree with.

Today's edition. "Site" It offers some tricky examples that not everyone will be able to cope with without a calculator. Check your mathematical knowledge and deal with examples that any diligent fifth grader will easily solve. Even those who have to study remotely.



Solve problems

1. This example can be solved even when you are doing some household chores. Just try not to get confused in different mathematical operations (and in the sequence of their execution). And don’t forget to check our answers in the second part of the article.
   
   
   
   
2. The second example is also quite interesting. Here the reader will not only have to divide and multiply, but also remember how to perform actions with degrees. The main thing is not to rush, because haste when solving any problems definitely does not act as an assistant. You'll get confused faster.
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   Posted by Antoha (@7second2)
   
   
   
   
3. And finally, we offer to deal with several examples at once. Here you will need to find out what numbers are hiding behind different butterflies. This is the only way to find out which number to enter instead of the question mark. Can you solve this?
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   Posted by Yulia Igorevna (@math_with_yulya)
   
   
   
   

Tips to challenges

1. Diligent students are well aware that multiplication should be done first. Therefore, our example takes the following form: 81 – 8 – 8 – 1 + 0 = 80 – 8 – 8 = 80 – 16 = 64. Or did you decide a little differently? Did the answers match?
   
   
   
   
2. First, let us understand that 62 = 36. Therefore, our example gets the following form: 36 ÷ 2 × 3 + 4 = 18 × 3 + 4 = 54 + 4 = 58.
3. The last example looks more cumbersome, and quickly everything will not work out. First we find out that behind the yellow-white butterfly hides √(3-2) = √1 = 1. Then behind the green butterfly is √25 = 5. From the third line we find that behind the purple butterfly lies 5 – 2 = 3. The last example is 1 × 5 + 3 = 8.
   
   
   
   

It seems that in each case we have found the right solution. Write in the comments, whether you agree with our answers or you managed to decide something different. And also solve our other problems that we published recently.